diff --git a/init.fish b/init.fish
index cecf8a4..5a83185 100644
--- a/init.fish
+++ b/init.fish
@@ -4,4 +4,27 @@ if type -q fenv
     set -g sdkman_prefix $SDKMAN_DIR
 
     fenv "source $sdkman_prefix/bin/sdkman-init.sh"
+
+  if grep -q "^sdkman_auto_env=true" "$sdkman_prefix/etc/config"
+    function __omf_sdk_sdkman_auto_env --on-variable PWD
+  
+      # chdir from current SDKMAN_ENV dirtree outside
+      # or 
+      # chdir into dir with .sdkmanrc that doesn't match the current SDKMAN_ENV root 
+      if begin; test -n $SDKMAN_ENV && not string match -q "$SDKMAN_ENV/**" "$PWD/"; end \
+        || begin; test "$SDKMAN_OLD_PWD" != "$PWD" && test "$SDKMAN_ENV" != "$PWD" && test -f ".sdkmanrc"; end
+
+        # runs SDKMAN's chdir hook, results in `sdk env clear` (if there was a previous SDKMAN_ENV) and `sdk env` (if there is a new .sdkmanrc)
+        fenv "source $sdkman_prefix/bin/sdkman-init.sh && export SDKMAN_ENV"
+    
+        # there was `sdk env clear` without `sdk env`
+        if not test -f ".sdkmanrc"
+          # unset SDKMAN_ENV as fenv can't currently unset variables
+          set -eg SDKMAN_ENV
+        end
+      end
+  
+      set -gx SDKMAN_OLD_PWD "$PWD"
+    end
+  end
 end